feat(api): add elysia server for cloudflare workers

apps/api/package.json

@@ -0,0 +1,17 @@
+{
+  "name": "@opencut/api",
+  "private": true,
+  "version": "0.0.1",
+  "scripts": {
+    "dev": "wrangler dev",
+    "deploy": "wrangler deploy",
+    "build": "wrangler deploy --dry-run"
+  },
+  "dependencies": {
+    "elysia": "latest"
+  },
+  "devDependencies": {
+    "@cloudflare/workers-types": "latest",
+    "wrangler": "latest"
+  }
+}

apps/api/src/index.ts

@@ -0,0 +1,15 @@
+import { Elysia, t } from "elysia";
+import { CloudflareAdapter } from "elysia/adapter/cloudflare-worker";
+
+export default new Elysia({ adapter: CloudflareAdapter })
+  .get("/", () => ({ status: "ok" }))
+  .get("/health", () => ({ healthy: true, timestamp: new Date().toISOString() }))
+  .post(
+    "/echo",
+    ({ body }) => body,
+    {
+      body: t.Object({ message: t.String() }),
+    }
+  )
+  // .compile() is required — it triggers AoT compilation at startup
+  .compile();

apps/api/wrangler.jsonc

@@ -0,0 +1,7 @@
+{
+  "$schema": "node_modules/wrangler/config-schema.json",
+  "name": "opencut-api",
+  "main": "src/index.ts",
+  // Minimum date required for CloudflareAdapter AoT support
+  "compatibility_date": "2025-06-01"
+}